Title:
PROCESS AND DEVICE FOR IMPROVING THE CAPTURE OF SO2 IN ELECTROLYTIC CELL GASES
Document Type and Number:
WIPO Patent Application WO/2013/093268
Kind Code:
A3
Abstract:
The present invention relates to a process and a device for capturing SO2 present in gases which originate from cells for the industrial production of aluminium by igneous electrolysis carried out on a group of at least two rectors (21; 22, ..., 2n) passed through in parallel by a gas stream (3) and supplied with a sorption agent of pulverulent material type capable of adsorbing effluents present in the gas stream (3) by bringing the sorption agent into contact with the gas stream (3), said at least two reactors (21; 22, ..., 2n) having means (10) for collecting said sorption agent after it has come into contact with said gas stream (3), at least one of said reactors (21; 22, ..., 2n) having means (11) for discharging said sorption agent, after it has come into contact with said gas stream (3), towards means (16) for injection into at least one other of said reactors (21; 22, ..., 2n) and, between the discharge means (11) and the injection means (16), said sorption agent is desorbed of the SO2 that it has adsorbed by at least one step of coming into contact with the gas stream (3) before reaching said discharge means (11).
Inventors:
BOUHABILA EL-HANI (FR)
MALARD THIERRY (FR)
MALARD THIERRY (FR)
Application Number:
PCT/FR2012/052704
Publication Date:
October 17, 2013
Filing Date:
November 22, 2012
Export Citation:
Assignee:
SOLIOS ENVIRONNEMENT (FR)
International Classes:
B01D53/50; B01D53/68; C25C3/22
Domestic Patent References:
| WO2010142892A1 | 2010-12-16 |
Foreign References:
| US5885539A | 1999-03-23 | |||
| US20090068077A1 | 2009-03-12 | |||
| EP2360296A1 | 2011-08-24 |
Attorney, Agent or Firm:
BEROGIN, Francis et al. (52 rue de la Victoire, Paris Cedex 09, FR)
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